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    <p>Hi everyone,</p>
    <p>First - a caveat - I've never been to Louisiana, and much of this
      email is based on tidying up some similar issues in New Jersey at
      the weekend (at <a class="moz-txt-link-freetext" href="https://www.openstreetmap.org/changeset/117636871">https://www.openstreetmap.org/changeset/117636871</a>
      and following).  However, the "duplicate inner polygon" issue was
      very much present there.</p>
    <p>The biggest import issues (apart from the actual "golf fixing"
      that I was trying to do) that I had wasn't "duplicate inner
      polygons" (in any editor it's easy to move them together), they
      were instead:</p>
    <ul>
      <li>In some cases the landuse imports no longer represented
        reality (a recreation ground that wasn't; woods that had been
        completely been remodeled for a golf course)</li>
      <li>In other cases it looked like the import misclassified what
        was not normally or not currently wetland as "wetland" in OSM -
        I couldn't see any break in the trees.  Maybe the "wetland"
        areas just had some sort of legal protection on them or some
        sort of flood risk?</li>
      <li>Some of the relations involved were very, very silly. 
        <a class="moz-txt-link-freetext" href="https://www.openstreetmap.org/relation/5884686">https://www.openstreetmap.org/relation/5884686</a> for example is
        clearly NOT one feature, and (as noted previously) not, or at
        least not always, marsh.</li>
    </ul>
    <p>Given all that, duplicate inner polygons is the last problem that
      I'd worry about here.</p>
    <p>All that said, LA is clearly not NJ, and wetland areas on the
      coast are much more likely to be actual wetland.  Also some areas
      of LA (at random,
      <a class="moz-txt-link-freetext" href="https://www.openstreetmap.org/#map=16/29.4707/-89.9440">https://www.openstreetmap.org/#map=16/29.4707/-89.9440</a> ) clearly
      have been tidied up, mostly match the available imagery, and the
      available imagery sources mostly agree amongst themselves.<br>
    </p>
    <p>Can you publish a list of issues in addition to the count on
<a class="moz-txt-link-freetext" href="https://wiki.openstreetmap.org/wiki/Automated_edits/TTmechanicalupdates/Fix_issue_with_duplicated_inner_polygons_in_United_States">https://wiki.openstreetmap.org/wiki/Automated_edits/TTmechanicalupdates/Fix_issue_with_duplicated_inner_polygons_in_United_States</a>
      so that people can assess what you are actually trying to "fix"? 
      That way, people will be able to see whether you'd just be
      changing "easily detectable broken data" into "less easily
      detectable broken data, or actually doing anything worthwhile. </p>
    <p>Best Regards,</p>
    <p>Andy<br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 21/02/2022 11:10, TomTom OSM wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:PAXPR07MB79995DC3125BDA055778DE928F3A9@PAXPR07MB7999.eurprd07.prod.outlook.com">
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        <p><span lang="EN-US">Hello everyone!<o:p></o:p></span></p>
        <p><span lang="EN-US">Let us know if you have any more feedback.<o:p></o:p></span></p>
        <p><span lang="EN-US">If there are no more suggestions from your
            side, we will happily start the test run in the state of
            Louisiana as originally planned.
            <span class="inline-comment-marker">After this, you’ll be
              able to take a look at all the changesets and see the
              outcome of our automated action. We will also keep you
              updated on the progress of our actions in this thread.</span><o:p></o:p></span></p>
        <p><span lang="EN-US">We are ready to start on Thursday
            2/24/2022. Does this timing work for you?<o:p></o:p></span></p>
        <p><span lang="EN-US">Looking forward to hearing from you.<br>
          </span>Marjan<o:p></o:p></p>
        <p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:EN-US"
            lang="EN-US"><o:p> </o:p></span></p>
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            1.0pt;padding:3.0pt 0cm 0cm 0cm">
            <p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
                lang="EN-US"> Eric Ladner <a class="moz-txt-link-rfc2396E" href="mailto:eric.ladner@gmail.com"><eric.ladner@gmail.com></a>
                <br>
                <b>Sent:</b> Thursday, February 17, 2022 5:06 PM<br>
                <b>To:</b> Eric Patrick <a class="moz-txt-link-rfc2396E" href="mailto:txemt1@gmail.com"><txemt1@gmail.com></a><br>
                <b>Cc:</b> TomTom OSM <a class="moz-txt-link-rfc2396E" href="mailto:OSM@tomtom.com"><OSM@tomtom.com></a>; Minh
                Nguyen <a class="moz-txt-link-rfc2396E" href="mailto:minh@nguyen.cincinnati.oh.us"><minh@nguyen.cincinnati.oh.us></a>;
                <a class="moz-txt-link-abbreviated" href="mailto:talk-us@openstreetmap.org">talk-us@openstreetmap.org</a><br>
                <b>Subject:</b> Re: [Talk-us] [bot] Proposal to fix
                issue with duplicated inner polygons in the United
                States<o:p></o:p></span></p>
          </div>
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        <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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                  <p class="MsoNormal"
style="mso-element:frame;mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly"><span
                      style="font-size:9.0pt;font-family:"Segoe
                      UI",sans-serif;color:#212121">You don't often
                      get email from
                      <a href="mailto:eric.ladner@gmail.com"
                        moz-do-not-send="true"
                        class="moz-txt-link-freetext">eric.ladner@gmail.com</a>.
                      <a
                        href="http://aka.ms/LearnAboutSenderIdentification"
                        moz-do-not-send="true">
                        Learn why this is important</a><o:p></o:p></span></p>
                </div>
              </td>
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                3.75pt 5.25pt 3.75pt;align:left" width="75">
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          <div>
            <p class="MsoNormal">It's a daunting task to update
              thousands of miles of coastline, bays, rivers, etc., after
              a weather event, esp. when the satellite imagery lags by
              months or years.
              <o:p></o:p></p>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal">Probably a "best-effort" thing.<o:p></o:p></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <div>
            <div>
              <p class="MsoNormal">On Wed, Feb 16, 2022 at 7:17 PM Eric
                Patrick <<a href="mailto:txemt1@gmail.com"
                  moz-do-not-send="true" class="moz-txt-link-freetext">txemt1@gmail.com</a>>
                wrote:<o:p></o:p></p>
            </div>
            <blockquote style="border:none;border-left:solid #CCCCCC
              1.0pt;padding:0cm 0cm 0cm
              6.0pt;margin-left:4.8pt;margin-right:0cm">
              <div>
                <p class="MsoNormal">Will these be updated after every
                  hurricane comes through and changes the coastline?<o:p></o:p></p>
              </div>
              <p class="MsoNormal"><o:p> </o:p></p>
              <div>
                <div>
                  <p class="MsoNormal">On Tue, Feb 15, 2022 at 2:24 PM
                    Eric Ladner <<a
                      href="mailto:eric.ladner@gmail.com"
                      target="_blank" moz-do-not-send="true"
                      class="moz-txt-link-freetext">eric.ladner@gmail.com</a>>
                    wrote:<o:p></o:p></p>
                </div>
                <blockquote style="border:none;border-left:solid #CCCCCC
                  1.0pt;padding:0cm 0cm 0cm
                  6.0pt;margin-left:4.8pt;margin-right:0cm">
                  <div>
                    <p class="MsoNormal">Having experience with editing
                      some of the Lousiana coastal areas, it's several
                      failed, incomplete, and possibly overlapping NHD
                      imports with a mess of invalid multi-polygons,
                      unclosed features, and any other error you can
                      think of.  
                      <o:p></o:p></p>
                    <div>
                      <p class="MsoNormal"><o:p> </o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal">I would recommend
                        against turning the bot loose on that geometry
                        until simpler test cases are attempted.<o:p></o:p></p>
                    </div>
                  </div>
                  <p class="MsoNormal"><o:p> </o:p></p>
                  <div>
                    <div>
                      <p class="MsoNormal">On Tue, Feb 15, 2022 at 5:20
                        AM TomTom OSM <<a
                          href="mailto:OSM@tomtom.com" target="_blank"
                          moz-do-not-send="true"
                          class="moz-txt-link-freetext">OSM@tomtom.com</a>>
                        wrote:<o:p></o:p></p>
                    </div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0cm 0cm 0cm
                      6.0pt;margin-left:4.8pt;margin-right:0cm">
                      <p class="MsoNormal">Hi Minh,<br>
                        <br>
                        Thank you for your kind words, and valuable
                        feedback!<br>
                        <br>
                        I passed your suggestions to my team. They will
                        take a closer look at them, and I'll get back
                        with more details in a while.<br>
                        <br>
                        Kind regards,<br>
                        Marjan<br>
                        <br>
                        <br>
                        <br>
                        <br>
                        -----Original Message-----<br>
                        From: Minh Nguyen <<a
                          href="mailto:minh@nguyen.cincinnati.oh.us"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">minh@nguyen.cincinnati.oh.us</a>>
                        <br>
                        Sent: Friday, February 11, 2022 6:58 PM<br>
                        To: <a href="mailto:talk-us@openstreetmap.org"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">talk-us@openstreetmap.org</a><br>
                        Subject: Re: [Talk-us] [bot] Proposal to fix
                        issue with duplicated inner polygons in the
                        United States<br>
                        <br>
                        [You don't often get email from <a
                          href="mailto:minh@nguyen.cincinnati.oh.us"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">
                          minh@nguyen.cincinnati.oh.us</a>. Learn why
                        this is important at <a
                          href="http://aka.ms/LearnAboutSenderIdentification"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">
                          http://aka.ms/LearnAboutSenderIdentification</a>.]<br>
                        <br>
                        Vào lúc 04:25 2022-02-08, TomTom OSM đã viết:<br>
                        > We propose to do a test run by updating
                        invalid polygons in the <br>
                        > Louisiana state, where 5,541 cases are
                        logged by the Osmose rule. Per <br>
                        > the Automated Edits code of conduct, we
                        will wait for your feedback <br>
                        > before we begin.<br>
                        <br>
                        Hi Marjan, at a glance, it looks like many of
                        the issues involve multipolygons imported from
                        NHD, since Louisiana has a very complex
                        coastline and system of bayous. [1][2] I think
                        many of us would welcome help cleaning up old
                        NHD imports, particularly regarding topology
                        issues.<br>
                        <br>
                        If you later move on to other states, you may
                        need to pay additional attention to occurrences
                        of this warning that don't only involve natural
                        multipolygons. For example, it's possible that a
                        natural feature might be coincident to an
                        enclave of a boundary relation. I'm unsure if
                        mappers would prefer the boundary relation to be
                        conflated with the natural feature or kept
                        separate from it.<br>
                        <br>
                        [1] <a
href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FNational_Hydrography_Dataset&data=04%7C01%7COSM%40tomtom.com%7C0dfe9b7763fc4528d26108d9f22f690d%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637807107711096562%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=rA4ZtYJcp27Jwd5vPAcWe9OQQ0iFd18GJrbN6EKqfPU%3D&reserved=0"
                          target="_blank" moz-do-not-send="true">
https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FNational_Hydrography_Dataset&amp;data=04%7C01%7Cosm%40tomtom.com%7Ca2065442e7e14a5f7f7408d9ed886316%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637801992953769114%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=DdeDNtg2FTWBWHq5B3nViP%2BQi7M8OqEb5kylsBUBcEg%3D&amp;reserved=0</a><br>
                        [2]<br>
                        <a
href="https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fosmose.openstreetmap.fr%2Fen%2Fissues%2Fopen%3Fsource%3D10139%26item%3D1170%26class%3D1%26limit%3D500&data=04%7C01%7COSM%40tomtom.com%7C0dfe9b7763fc4528d26108d9f22f690d%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637807107711096562%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=jsp06%2FkLhhBC3AglOKak9nzwaYZNlIP0lwJBdk1%2B%2F%2B0%3D&reserved=0"
                          target="_blank" moz-do-not-send="true">https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fosmose.openstreetmap.fr%2Fen%2Fissues%2Fopen%3Fsource%3D10139%26item%3D1170%26class%3D1%26limit%3D500&amp;data=04%7C01%7Cosm%40tomtom.com%7Ca2065442e7e14a5f7f7408d9ed886316%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637801992953769114%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=wmlkJzpsSzLtPa36I%2B6TXqXJyG%2BPMH%2Brqn4eA2%2B13X0%3D&amp;reserved=0</a><br>
                        <br>
                        --<br>
                        <a href="mailto:minh@nguyen.cincinnati.oh.us"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">minh@nguyen.cincinnati.oh.us</a><br>
                        <br>
                        <br>
                        <br>
                        <br>
                        _______________________________________________<br>
                        Talk-us mailing list<br>
                        <a href="mailto:Talk-us@openstreetmap.org"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">Talk-us@openstreetmap.org</a><br>
                        <a
href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&data=04%7C01%7COSM%40tomtom.com%7C0dfe9b7763fc4528d26108d9f22f690d%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637807107711096562%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=dHOJXU1UZkUsRDcLsSK0tDNAMmZr6B83FEHOeA8yPeg%3D&reserved=0"
                          target="_blank" moz-do-not-send="true">https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&amp;data=04%7C01%7Cosm%40tomtom.com%7Ca2065442e7e14a5f7f7408d9ed886316%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637801992953769114%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=BfQWDedsfE4orzbv6PdH3uLA%2B36F2KqD6RaGyJkqt%2FE%3D&amp;reserved=0</a><br>
                        _______________________________________________<br>
                        Talk-us mailing list<br>
                        <a href="mailto:Talk-us@openstreetmap.org"
                          target="_blank" moz-do-not-send="true"
                          class="moz-txt-link-freetext">Talk-us@openstreetmap.org</a><br>
                        <a
href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&data=04%7C01%7COSM%40tomtom.com%7C0dfe9b7763fc4528d26108d9f22f690d%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637807107711096562%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=dHOJXU1UZkUsRDcLsSK0tDNAMmZr6B83FEHOeA8yPeg%3D&reserved=0"
                          target="_blank" moz-do-not-send="true">https://lists.openstreetmap.org/listinfo/talk-us</a><o:p></o:p></p>
                    </blockquote>
                  </div>
                  <p class="MsoNormal"><br clear="all">
                    <o:p></o:p></p>
                  <div>
                    <p class="MsoNormal"><o:p> </o:p></p>
                  </div>
                  <p class="MsoNormal">-- <o:p></o:p></p>
                  <div>
                    <p class="MsoNormal">Eric Ladner<o:p></o:p></p>
                  </div>
                  <p class="MsoNormal">_______________________________________________<br>
                    Talk-us mailing list<br>
                    <a href="mailto:Talk-us@openstreetmap.org"
                      target="_blank" moz-do-not-send="true"
                      class="moz-txt-link-freetext">Talk-us@openstreetmap.org</a><br>
                    <a
href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&data=04%7C01%7COSM%40tomtom.com%7C0dfe9b7763fc4528d26108d9f22f690d%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C637807107711096562%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=dHOJXU1UZkUsRDcLsSK0tDNAMmZr6B83FEHOeA8yPeg%3D&reserved=0"
                      target="_blank" moz-do-not-send="true">https://lists.openstreetmap.org/listinfo/talk-us</a><o:p></o:p></p>
                </blockquote>
              </div>
            </blockquote>
          </div>
          <p class="MsoNormal"><br clear="all">
            <o:p></o:p></p>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <p class="MsoNormal">-- <o:p></o:p></p>
          <div>
            <p class="MsoNormal">Eric Ladner<o:p></o:p></p>
          </div>
        </div>
      </div>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________
Talk-us mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a>
<a class="moz-txt-link-freetext" href="https://lists.openstreetmap.org/listinfo/talk-us">https://lists.openstreetmap.org/listinfo/talk-us</a>
</pre>
    </blockquote>
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